KR20020065881A - Tooth Impression Acquision Tray for Non-Tooth Patient - Google Patents

Abstract

PURPOSE: A tray used for an edentulous jaw impression taking method is provided to achieve a tray suitable to take a best impression suitable for the Orientals, and to enable even an inexperienced doctor to successfully complete the taking of impression. CONSTITUTION: The tray used for an edentulous jaw impression taking method, for endowing an offset of 3mm to 4mm from arcus maxillaris or arcus mandibularis toward a space for an impression material, comprises a maxillary tray(10) used for the taking of a maxillary impression of an edentulous jaw patient, and a lower jaw used for the taking of a lower impression, wherein the tray is colored with a different certain standard color(16) for the classification of the trays depending on the size of jaw.

Description

Tooth Impression Acquision Tray for Non-Tooth Patient}

The present invention relates to a tray for obtaining an edentulous impression used to manufacture a dental prosthesis, and more specifically, having a plurality of trays suitable for the edentulous patient to be treated, maxillary tuberosity of the maxillary and mandibular nodules ( The present invention relates to a tray for immortal impression impression acquisition in which one tray is selected based on a retromolar pad.

In general, in order to produce a dental prosthesis of a dental patient, it is necessary to obtain a dental impression in the oral cavity of the patient, wherein the impression acquisition device used is called a tray or an impression acquisition tray.

The structure of the conventional tooth impression collecting tray consists of a concave structure that can hold an impression agent and a handle fixed to the structure to obtain an internal impression structure of the oral cavity of a dental patient to which the dental prosthesis is to be mounted. The constituent material is mainly a metal material.

However, the above-described conventional tray has the following disadvantages.

Although the shape of a person's teeth varies according to age, ethnicity, and body size, dental prostheses are manufactured using trays of the same size or shape.

For example, even when using trays of different sizes, since the doctor selects the tray as the eye mass, the less experienced dentist patient does not receive proper dental care.

Moreover, although human teeth have to be manufactured very precisely since the service period is at least 10 years, there is a problem that depends only on the experience of the dentist in the acquisition of dental impressions.

In addition, all of the trays used for immortal impression impressions currently used are developed with reference to the western form of the edentulous, so there are inconveniences in that they are not suitable for Asians, especially Koreans, in actual clinical use.

Accordingly, an object of the present invention is to solve the above-mentioned problems, and to provide a tray suitable for acquiring an oriental toothless impression.

1 is a perspective view showing a maxillary tray according to the present invention.

Figure 2 is a perspective view of the mandible tray according to the present invention.

Figure 3 is a graph for explaining the clinical experiment of the maxillary tray according to the present invention.

Figure 4 is a graph for explaining the clinical experiment of the conventional tray compared to FIG.

5 is a graph for explaining the clinical experiment of the mandibular tray according to the present invention.

Figure 6 is a graph for explaining the clinical experiment of the conventional tray compared with FIG.

<Description of the symbols for the main parts of the drawings>

10: maxillary tray 12: maxillary handle

14: maxillary collection frame 16: reference color

18: Hall

A feature of the present invention for achieving the above object is to give an offset of 3 ~ 4mm from the arch, as a space for the impression body, as a tray for obtaining the maxillary impression of the teeth with a plurality of pores, Maxillary tray; It includes a mandibular tray for acquiring the impression of the jawless teeth of the edentulous patients, and different predetermined reference colors are displayed for classification of the teeth of the edentulous patients.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, it is very important to properly select a commercially available ready-made tray in order to obtain an optimal dental impression. If the tray is too large, it will deform the tissue around the margin of the impression and push the soft tissue below the impression from the bone. On the other hand, if the tray is too small, the marginal tissue will sink into the alveolar phase. Thus, the size of the tray may include all of the important anatomical structures and may be large and free to allow a space of approximately 2 to 3 mm uniformly between the remaining alveolar agent and the inner surface of the tray, and may include slightly wider vestibular space. The inventors have clinically confirmed that it is useful to choose to have.

The present inventors have experimented by comparing the tray of the present invention and the existing tray at the clinical level.

First, for several years, hundreds of Korean ignorants were made from a model obtained from a preliminary impression using an irreversible hydrocolloid impression agent, and a personal tray for the final impression was used, and then the margin was formed through the model compound. The main model was obtained by taking a precise impression. This main model was classified into a number of Korean teeth by the 3D measuring instrument according to the shape and size.

Subsequently, a tray having a space of about 4 mm for the impression agent based on the edentulous form was designed using an Auto Cad program, and then a tray was manufactured using a CAD / CAM system and a CNC milling machine.

Here, in order to manufacture a tray for edentulous teeth, it was necessary to schematize the alveolar alveolar, and for this purpose, first, the average line measurement item value of each group was changed to three-dimensional spatial coordinates, and then tray shaping was performed based on the schematic alveolar type. Performed.

Between the alveolar and the impression agent, the amount of space for the irreversible water colloid impression agent is set to 3 to 4 mm, and the area of the alveolar area is first drawn by drawing a tangent line in the alveolar ridge and drawing a perpendicular line to the tangent line. Coordinates 3-4 mm apart from the established coordinates, that is, on the offset waterline, were determined as tray vertices.

1 is a perspective view showing the upper jaw tray for impression acquisition in accordance with the present invention, the upper jaw tray (10) is a dentist holding the upper jaw handle (12) for holding by hand, and the impression agent to obtain the upper tooth impression of the patient Impression acquisition frame 14 for the purpose, a reference color (16) classifying the maxillary tray according to the size of the patient's upper teeth, and the impression agent contained therein hole 18 for preventing deformation from the impression acquisition frame It is.

Figure 2 is a perspective view showing a lower mandible tray for impressions according to the present invention, the lower mandible 20 is a dentist's lower jaw handle (22) for holding by hand during the treatment, and the impression agent to obtain the lower teeth impression of the patient Impression collection frame 24 for the purpose, a reference color 26 classifying the mandibular tray according to the size of the lower tooth of the patient, and a hole 28 to prevent the air bubbles from being raised from the impression collection frame. Consists of

For reference, the upper jaw tray and the lower jaw tray contain an impression agent, and if the upper or lower teeth of the patient are contacted for a predetermined time, the dental impression of the patient can be obtained as it is. Based on this, the doctor makes a dental prosthesis suitable for the patient. Done.

On the other hand, the tray is made of a material selected from the group consisting of brass, aluminum, stainless steel, brass alloy, zinc alloy, the reference color for displaying the color is composed of a synthetic resin.

Looking at the precision of the case of the impression body of the edentulous patient using the above-described upper and lower jaw tray as follows.

Figure 3 is a graph showing the precision for the maxillary tray according to the present invention, Figure 4 is a graph showing the precision for the conventional maxillary tray, the X-axis represents a specific portion of the tray, the Y-axis represents the thickness of each portion of the impression body Although it shows, compared with the existing thickness for each site | part, it turns out that the thickness for each site | part of this invention is favorable on average.

Figure 5 is a graph showing the precision through the thickness of each impression portion taken impression using the lower jaw tray according to the present invention, Figure 6 is the thickness of each portion of the impression body taken impression using the existing lower jaw tray As a graph showing the precision through, the X-axis represents a specific portion of the impression body, the Y-axis represents the thickness of each portion of the impression body, as shown in FIG. In contrast to the nonuniform thickness, it can be seen that the impression body produced by using the tray of the present invention has a uniform thickness for each part.

In other words, evenly formed thickness of the impression body produced by using the tray of the present invention is to prove that the impression of the non-dentified patients can be obtained more precisely than the conventional tray.

According to a preferred embodiment of the present embodiment disclosed as described above has the following advantages.

First, there is an advantage that it is easy to manufacture a very precise dental prosthesis by using a tray suitable for dental treatment of the patient.

Second, there is an advantage that can significantly improve the quality of medical services by providing an automated, optimized tray so that the dentist's know-how is not important.

Third, by matching the upper and lower trays in color to each other can be identified at a glance even without a separate measuring device is mobilized, there is an advantage in reducing the number of mistakes in the production of the dental prosthesis.

Claims (3)

As a tray for the impressionless impression impression which gives an offset of 3-4 mm from the arch, as a space for the impression body, and has a plurality of perforations, Maxillary tray to acquire maxillary impression of the edentulous patient, And a mandibular tray for acquiring a mandibular impression of the edentulous patient, and characterized in that different predetermined reference colors are displayed for classifying the dentifrice of the edentulous patient. The method of claim 1, The maxillary tray is an edentulous impression taking tray, characterized in that to form a space of 2 to 3mm uniformly between the residual alveolar margin and the tray margin. The method of claim 1, The lower jaw tray The maxillary and mandibular trays are made of a material selected from the group consisting of brass, aluminum alloy, stainless steel, brass alloy and zinc alloy.